Trooper Cerda stopped me for a speeding violation. I knew that I was "in the wrong". Trooper Cerda was extremely professional and courteous. I am writing because of the way that Trooper Cerda treated me. I have not had a bad experience with a DPS Trooper and so I thought in this day of contempt for law enforcement I would pay a compliment to Trooper Cerda. Thanks again Trooper Cerda.